Mobile security system and auto dialing unit used same

ABSTRACT

A mobile security system, which includes a warning signal transmitter unit installed in the place or equipment to be protected, an auto dialing unit having a signal receiver, and a cellular phone coupled to the auto dialing unit, wherein when the warning signal transmitter unit detects an abnormal condition, it immediately sends a warning signal to the signal receiver by radio, and the signal receiver immediately drives the auto dialing unit to dial a particular telephone number upon receipt of the warning signal, so as to inform a particular person or security center to take the necessary step. The auto dialing unit can be a mechanical design, or an electronic design as desired.

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application is a continuation-in-part (CIP) application ofSer. No. 09/373,134 filed on Aug. 12, 1999.

BACKGROUND OF THE INVENTION

[0002] The present invention relates to a mobile security system, andmore particularly to such a mobile security system, which comprises awarning signal transmitter unit installed in the place to be protectedto monitor the surrounding, an auto dialing unit having a signalreceiver, and a cellular phone coupled to the auto dialing unit anddriven by the auto dialing unit to call a particular telephone numberfor help when the signal receiver receives a radio warning signal fromthe warning signal transmitter unit.

[0003] Following fast development of economics, the living quality isgreatly improved. Most families have a car for transportation. However,in the modern society, there are many lazy people hoping to gain withouteffort, and theft cases occur every day. In order to improve the livingquality of the surroundings, it is important to reduce the frequency ofoccurrence of theft cases. A variety of security system have beendeveloped for this purpose. A regular security system is generallycomprised of a plurality of sensors installed in fixed locations in theplace or equipment to be protected to monitor the surroundings, andalarm means connected to the sensors. The alarm means is triggered toalarm when the sensors detect an abnormal condition. Because the sensorsare installed in fixed locations, they can easily found out and damagedby the intruder. When an abnormal condition occurs, the security personin charge is informed to check the situation, and then to inform theowner of the place or equipment under protection after checking. Becausethe owner of the place or equipment under protection is not informedbefore the security person goes to check the situation, the owner of theplace under protection may be unable to take the necessary step in time.Further the alarm signal of the alarm means can be heard or seen onlywithin a limited distance from the place or equipment under protection.If the owner of the place or equipment under protection is beyond theeffective range of the alarm means, the security system may work invain.

SUMMARY OF THE INVENTION

[0004] The present invention has been accomplished under thecircumstances in view. According to one aspect of the present invention,the mobile security system comprises a warning signal transmitter unitinstalled in the place or equipment to be protected, an auto dialingunit having a signal receiver, and a cellular phone coupled to the autodialing unit. When the warning signal transmitter unit detects anabnormal condition, it immediately sends a warning signal to the signalreceiver by radio, and the signal receiver immediately drives the autodialing unit to dial a particular telephone number upon receipt of thewarning signal, so as to inform a particular person or security centerto take the necessary step. According to another aspect of the presentinvention, the auto dialing unit can be a mechanical design, or anelectronic design as desired. Because the auto dialing unit is coupledto the cellular phone and controlled by the warning signal transmitterunit by radio, the auto dialing unit can be kept with the cellular phonefrom sight.

BRIEF DESCRIPTION OF THE DRAWINGS

[0005]FIG. 1 is a schematic drawing showing the arrangement andoperation of a security system according to a first embodiment of thepresent invention;

[0006]FIG. 2 is a perspective view of a mechanical type auto dialingunit for a security system according to the first embodiment of thepresent invention;

[0007]FIG. 3 is an exploded view of a cellular phone carrier board for asecurity system according to the first embodiment of the presentinvention;

[0008]FIG. 4 is an exploded view of an actuating bar for a securitysystem according to the first embodiment of the present invention;

[0009]FIG. 5 is similar to FIG. 2 but showing the actuating bar turnedto the working position;

[0010]FIG. 6 is a side plain view of FIG. 5;

[0011]FIG. 7 is a sectional view taken along line A-A of FIG. 5;

[0012]FIG. 8 is similar to FIG. 7 but showing the “OK” key button of themaster cellular phone triggered;

[0013]FIG. 9 is a perspective view of a mechanical type auto dialingunit for a security system according to a second embodiment of thepresent invention;

[0014]FIG. 10 is a perspective view of the spring-supported holding downdevice of the mechanical type auto dialing unit according to the secondembodiment of the present invention;

[0015]FIG. 11 is an exploded view of the cellular phone carrier boardaccording to the second embodiment of the present invention;

[0016]FIG. 12 is an exploded view of a master cellular phone and anelectronic type auto dialing unit for a security system according to athird embodiment of the present invention;

[0017]FIG. 13 illustrates an electronic type auto dialing unit built ina master cellular phone according to a fourth embodiment of the presentinvention; and

[0018]FIG. 14 is a schematic drawing showing the arrangement andoperation of the security system according to the fourth embodiment ofthe present invention.

DETAILED DESCRIPTION OF THE PREFFERED EMBODIMENT

[0019] Referring to FIG. 1, a movable security system according to afirst embodiment of the present invention comprises a warning signaltransmitter unit 10 installed in, for example, the window 1 of a house,a mechanical type auto dialing unit 20, and a master cellular phone 2coupled to the mechanical type auto dialing unit 20. The warning signaltransmitter unit 10 comprises a sensor 11, and a signal transmitter 12.The sensor 11 can be a vibration sensor, fire sensor, infrared sensor,smoke sensor, etc. When the sensor 11 detects a signal, it immediatelydrives the signal transmitter 12 to send a warning signal into the airby radio. The mechanical type auto dialing unit 20 comprises a signalreceiver 21 for receiving the warning signal from the signal transmitter12. Upon receipt of the warning signal from the signal transmitter 12,the signal receiver 21 immediately drives the auto dialing unit 20 todial a particular telephone number, for example, the telephone number ofa telephone 3 or a sub-cellular phone 4 through the master cellularphone 2, so as to inform a particular person or security center to takethe necessary step. The master cellular phone 2 is recorded with awarning message, for example, the bark of a dog. When the telephone 3 orsub-cellular phone 4 is connected, the warning message, i.e., the barkof a dog is transmitted from the master cellular phone 2 to thetelephone 3 or sub-cellular phone 4, informing the person in chargeabout the occurrence of an abnormal condition.

[0020] Referring to Figures from 2 through 8, the mechanical type autodialing unit 20 comprises a rack 50, an adjustable cellular phonecarrier board 60, an actuating bar 70, a control device 80 having theaforesaid signal receiver 21 installed therein, a movable pressuredevice 90 for driving the actuating bar 70 up and down, a driving device100, and a power supply unit 110. The rack 50 comprises two opposingvertical boards 51 and 52 arranged in parallel and a horizontal board 53connected between the vertical boards 51 and 52. The vertical boards 51and 52 each comprise a longitudinally extended stepped structure 511 or521, a substantially rectangular top recess 54 or 55 on the middle. Twobuffer devices 56 and 57 are respectively mounted in the top recesses 54and 55 at the vertical boards 51 and 52. The buffer devices 56 and 57each comprise a screw bolt 561 or 571, which is mounted in a verticalthrough hole (not shown) at the top recess 54 or 55 and extended to thestepped structure 511 or 521, and a spring 562 or 572, which is mountedon the top recess 54 or 55 around the screw bolt 561 or 571, and impartsan upward pressure to the screw bolt 561 or 571.

[0021] The adjustable cellular phone carrier board 60 is supported onthe horizontal board 53 inside the rack 50 to carry the master cellularphone 2 (see FIG. 6). As illustrated in FIG. 3, the adjustable cellularphone carrier board has its one end, namely, the bottom end pivoted to aU-bar 61. The U-bar 61 comprises a fixed bottom screw rod 62 insertedthrough a hole 531 at the horizontal board 53 (see FIGS. 2 and 6), andscrewed up with an adjustment nut 63. The adjustment nut 63 is stoppedat the bottom side wall of the horizontal board 53. Rotating theadjustment nut 63 causes the fixed bottom screw rod 62 to be movedupwards or downwards, and therefore the elevation of the bottom end ofthe adjustable cellular phone carrier board 60 is relatively adjusted.The other end, namely, the top end of the adjustable cellular phonecarrier board 60 has a link 66 pivoted thereto at the bottom. A screwrod 65 is connected to the bottom side wall of the adjustable cellularphone carrier board 60 by a link 66. An adjustment nut 64 is threadedonto the screw rod 65. By means of rotating the adjustment nut 64, theelevation of the front end of the adjustable cellular phone carrierboard 60 is relatively adjusted. By means of rotating the adjustmentnuts 62 and 64, the elevational position of the adjustable cellularphone carrier board 60 is adjusted subject to the size of the mastercellular phone 2 used. The adjustable cellular phone carrier board 60further comprises a longitudinal sliding groove 68 extended to its frontend at the top. A sliding locating plate 67 is inserted into thelongitudinal sliding groove 68, and fixed to the adjustable cellularphone carrier board 60 at the desired location by a tightening up screw69 to hold the master cellular phone 2 in place.

[0022] The actuating bar 70 comprises two parallel side arms 71 and 72,a transverse arm 73, a sliding button 74, two spring elements 75, andtwo stop pins 733 and 734. The side arms 71 and 72 each have one endrespectively pivoted to the vertical boards 51 and 52 adjacent to thetop recesses 54 and 55 at one end, and opposite end provided with alongitudinally extended sliding slot 711 or 721, and an elongated sidehole 712 or 722 disposed at an outer side in communication with thelongitudinally extended sliding slot 711 or 721. The transverse arm 73comprises two coupling pins 731 and 732 perpendicularly raised from twodistal ends thereof in same direction, and respectively inserted intothe longitudinally extended sliding slots 711 and 721 at the side arms71 and 72. The stop pins 733 and 734 are respectively andperpendicularly fastened to the coupling pins 731 and 732 at thetransverse arm 73, and extended out of the elongated side holes 712 and722 at the side arms 71 and 72 to secure the coupling pins 731 and 732to the side arms 71 and 72, enabling the coupling pins 731 and 732 to bemoved with the transverse arm 73 back and forth in the longitudinallyextended sliding slots 711 and 721 within a limited range. The springelements 75 are respectively mounted in the longitudinally extendedsliding slots 711 and 721 at the side arms 71 and 72 and stopped againstthe coupling pins 731 and 732, imparting an outward pressure to thecoupling pins 731 and 732. The sliding button 74 is mounted on thetransverse arm 73, and moved between the coupling pins 731 and 732.

[0023] The control device 80 comprises a control circuit board 81mounted on the horizontal board 53 of the rack 50 at the bottom side,and a contact switch 82 mounted inside the rack 50 and connected to thecontrol circuit board 81 by an electric wire. The aforesaid signalreceiver 21 is installed in the control circuit board 81.

[0024] The movable pressure device 90 comprises two vertical movablerods 91 and 92 respectively inserted through a respective through hole(not shown) at the top recesses 54 and 55 at the vertical boards 51 and52 of the rack 50, two hook plates 96 and 97 respectively and fixedlymounted on the vertical movable rods 91 and 92 at the top for hooking upthe actuating bar 70, a horizontal pressure plate 93 connected betweenthe vertical movable rods 91 and 92 and suspended below the horizontalboard 53 of the rack 50, and two compression springs 94 and 95respectively mounted on the vertical movable rods 91 and 92 and stoppedbetween the vertical boards 51 and 52 of the rack 50 and the hook plates96 and 97.

[0025] The driving device 100 is a motor fixedly mounted inside the rack50 below the horizontal board 53, having an output shaft 101, and a cam102 fixedly mounted on the output shaft 101 and peripherally disposed incontact with the top side wall of the horizontal pressure board 93.

[0026] The power supply unit 110 is a battery box mounted in the rack50, and connected to the control device 80 and the driving device 100 bya circuit to provide the necessary working voltage.

[0027] When in use, the master cellular phone 2 is placed on thecellular phone carrier board 60 and secured in place by the slidinglocating plate 67, then the actuating bar 70 is turned relative to therack 50 from the non-working position shown in FIG. 2 to the workingposition shown in FIGS. 5 and 6 and supported on the buffer devices 56and 57 and retained in the working position by the hook plates 96 and97, and then the sliding button 74 is adjusted on the transverse arm 73into vertical alignment with an “OK” key button 5 at the master cellularphone 2. When the signal receiver 21 receives a warning signal from thesignal transmitter unit 10, the control circuit board 81 immediatelycontrols the contact switch 82 to turn on the motor 100, causing themotor 100 to rotate the output shaft 101 and the cam 102 through twoturns. Rotating the cam 102 through two runs causes the horizontalpressure board 93 to be reciprocated vertically twice, and therefore the“OK” key button 5 of the master cellular phone 2 is clicked twice at afixed time interval (see FIGS. 7 and 8) to dial up a particulartelephone number.

[0028] Because the cellular phone carrier board 60 is verticallyadjustable, the mechanical type auto dialing unit 20 fits cellularphones of different thickness. However, because commercially availablecellular phones have different dimensions, it is important to make themechanical type auto dialing unit 20 capable of fitting any of a varietyof cellular phones.

[0029] Referring to FIGS. 2, 7 and 8 again, vertical mounting grooves 58are respectively provided at the vertical boards 51 and 52 of the rack50 at an inner side, and a cellular phone holder 140 is mounted in thevertical mounting grooves 58 between the vertical boards 51 and 52 tohold the master cellular phone 2. The cellular phone holder 140comprises a receiving chamber 141 fitting the master cellular phone 2,and a plurality of mounting plugs (not shown) respectively fastened tothe vertical mounting grooves 58 at the vertical boards 51 and 52 of therack 50.

[0030]FIGS. 9 through 11 show an alternate form of the presentinvention. According to this embodiment, the mechanical type autodialing unit 20′ comprises a spring-supported holding down device 120installed in the rack for holding down the master cellular phone. Thespring-supported holding down device 120 comprises a lever 121 having aninner end 1211 pivoted to the horizontal board 53 and an outer end 1212extended out of the horizontal board 53, a substantially U-shaped plate122 pivoted to the lever 121 by a pivot 123 and disposed between thelever 121 and the horizontal board 53, and two tensile springs 124 and125 symmetrically connected between the lever 121 and the horizontalboard 53 adjacent to the pivot 123. The U-shaped plate 122 is turnedabout the pivot 123, having two upwardly extended, angled clamping ends1221 and 1222. The cellular phone carrier board 60′ has two parallelsliding openings 127 and 128 through which the angled clamping ends 1221and 1222 of the U-shaped plate 122 pass. The tensile springs 124 and 125pull the lever 121 in one direction, keeping the angled clamping ends1221 and 1222 to be moved with the U-shaped plate 122 to one end at theparallel sliding openings 127 and 128. Before putting the mastercellular phone 2 in the cellular phone carrier board 60′, the outer end1212 of the lever 121 is pulled with the hand in one direction to movethe U-shaped plate 122 along the parallel sliding openings 127 and 128.After installation of the master cellular phone 2, the lever 121 isreleased from the hand and pulled back to its former position by thetensile springs 124 and 125, enabling the angled clamping ends 1221 and1222 of the U-shaped plate 122 to clamp on the master cellular phone 2,and therefore the master cellular phone 2 is firmly retained to thecellular phone carrier board 60′ in position.

[0031] As indicated above master cellular phone 2 is supported above thecellular phone carrier board 60 or 60′ of the mechanical type autodialing unit 20 or 20′. In order to let the sliding button 74 be able topositively trigger the “OK” key button 5 of the master cellular phone 2,the actuating bar 70 is arranged in parallel to the master cellularphone 2, and the movable pressure device 90 is arranged perpendicular tothe actuating bar 70.

[0032]FIG. 12 shows another alternate form of the present invention.According to this alternate form, the master cellular 2′ is coupled toan electronic type automatic dialing unit 130. The electronic typeautomatic dialing unit 130 comprises a circuit board 131, and a signalreceiver 21 installed in the circuit board 131. The circuit board 131comprises an electric plug 133, and an output circuit 132 connected tothe electric plug 133. The master cellular phone 2′ comprises a jack 7at one lateral side wall thereof, and a switching circuit 6 connected tothe “OK” key button 5. When in use, the electric plug 133 is pluggedinto the jack 7 at the master cellular phone 2′. When the signalreceiver 21 receives a warning signal from the warning signaltransmitter unit 10, it immediately drives the electronic type automaticdialing unit 130 to dial the master cellular phone 2′, causing it tocall the telephone 3 or sub-cellular phone 4 (see also FIG. 1). Theelectronic type automatic dialing unit 130 may obtain battery powersupply from the master cellular phone 2′. Alternatively, a battery box(not shown) may be directly installed in the circuit board 131 toprovide the necessary working voltage to the electronic type automaticdialing unit 130.

[0033]FIGS. 13 and 14 show still another alternate form of the presentinvention. According to this alternate form, an electronic typeautomatic dialing unit 130′ is built in the master cellular phone 2″.The electronic type automatic dialing unit 130′ comprises a circuitboard 131′, and a signal receiver 21 installed in the circuit board131′. The circuit board 131′ is connected to a switching circuit 6 atthe “OK” key button 5 of the master cellular phone 2″. When the signalreceiver 21 receives a warning signal from the warning signaltransmitter unit 10, it immediately drives the circuit board 131′ toswitch on the “OK” button 5 twice, thereby causing the master cellularphone 2″ to call the telephone 3 or sub-cellular phone 4.

[0034] Because the mechanical type automatic dialing unit or electronictype automatic dialing unit automatically dials a set telephone numberwithin a short time, a warning signal can be quickly given to theassigned party when an emergency condition occurs. Therefore, theassigned party can receive the signal before the intruder damages thesecurity system.

[0035] Because the security system of the present invention is designedto be used with a commercially available cellular phone, the use of thepresent invention must consider the characteristics of commerciallyavailable cellular phone, i.e., before the application of the presentinvention, the master cellular phone 2, 2′ or 2″ must be turned on andset into the mode for transferring incoming call to another telephone,so as to prevent an interference with the auto dialing function.Therefore, the master cellular phone 2 is set in the mechanical typeauto dialing unit 20 or 20′. If the master cellular phone 2′ is used, itis coupled to the electronic type auto dialing unit 130. Alternativelythe master cellular phone 2″ may be used. When the mechanical type autodialing unit 20 or 20′, or the electronic type auto dialing unit 130 or130′ receives a warning signal from the warning signal transmitter unit10, the master cellular phone 2, 2′ or 2″ is immediately driven toachieve an auto dialing operation.

[0036] Further, either the mechanical type auto dialing unit 20 or 20′,or the electronic type auto dialing unit 130 or 130′ is used, there isabout 5 minutes of time delay when started, so that the user hassufficient time to leave the place or equipment under protection. Themechanical type auto dialing unit 20 or 20′, or the electronic type autodialing unit 130 or 130′ is set to start again 5 minutes after eachtriggering. Therefore, the master cellular phone 2, 2′ or 2″ hassufficient time to complete circuit cutting off operation and to furtherenter the stand-by mode if no body picks up the master cellular phone 2,2′ or 2″ upon an incoming call.

[0037] Further, if the master cellular phone 2, 2′ or 2″ is set to diala cellular phone 4, the voice box function of the cellular phone 4 issuggested to be turned off, so as to save the calling charge. In casethe cellular phone 4 is a voice-controlled cellular phone, a particularsound is recorded in the master cellular phone 2, 2′ or 2″ in thewarning message before, for example, the bark of a dog, for switching onthe cellular phone 4.

[0038] As indicated above, the mechanical type or electronic type autodialing unit according to the present invention can automatically dial acellular phone to call a particular number when an abnormal conditionoccurs, so that the properly owner can take the necessary step in time.Because the auto dialing function is started by a radio warning signal,and the mechanical type or electronic type auto dialing unit hasself-provided battery power supply, the master cellular phone and themechanical type or electronic type auto dialing unit can be received ina secret place kept from sight. Because the master cellular phone can betriggered to dial a particular telephone number within a short timeafter the occurrence of an abnormal condition, the security system ispractical in use, and can positively inform the user of the situation.Further, because the structure of the security system is simple, theinstallation cost of the present invention is inexpensive.

[0039] Further, we would like to explain why the OK key button of themaster cellular phone 2, 2′ or 2″ must be pressed or switched on twice.Because we must preset a particular telephone number in the said mastercellular phone 2, 2′ or 2″ before we start to use his security system,so, if we would like to dial the said particular telephone number outthrough the said master cellular phone 2, 2′ or 2″, we must press aparticular key button for reproducing that particular telephone numberfirst. As we know, some kinds of cellular phones can use a same keybutton, for example, OK key button, to complete those two processes. So,if the said master cellular phone 2, 2′ or 2″ wants to dial a setparticular telephone number out, it must let its OK key button bepressed or switched on twice.

[0040] But, we also know that some other kinds of cellular phones mustuse two different key buttons to complete those two processes shown asabove, i.e. they must use a first particular key button to reproduce thesaid particular telephone number, then, use a second particular keybutton to dial the said particular telephone number out Maybe the saidcellular phones are difficult to be used in mechanical type auto dialingunit of the present application, but, we believe that they could easilybe used in electronic type auto dialing unit of the present application.

[0041] Of course, we still know that there are some further kinds ofcellular phones which can complete those two processes by pressing aparticular key button once only. So, if we can let the motor of the saidmechanical type auto dialing unit rotate the said cam one run only,then, the said cellular phones will be suitable to be used in mechanicaltype auto dialing unit. Of course, they could also be used in electronictype auto dialing unit.

[0042] Further, if the said master cellular phone 2, 2′ or 2″ is avoice-controlled cellular phone, then, we can install a voice playerunit beside the said master cellular phone. Of course, the said voiceplayer unit can also play by a signal receiver. Therefore, the saidvoice player unit will produce a special voice to let the said mastercellular phone dial a set telephone number out after the said signalreceiver received a warning signal from an external warning signaltransmitter means.

[0043] It is to be understood that the drawings are designed forpurposes of illustration only, and are not intended for use as adefinition of the limits and scope of the invention disclosed.

What the invention claimed is:
 1. A mobile security system comprising acellular phone and an auto dialing unit, said cellular phone comprisinga jack, a particular key button set driven to dial a set telephonenumber, and a switching circuit connected between said jack and saidparticular key button set, said auto dialing unit comprising a circuitboard and a signal receiver installed in said circuit board forreceiving a radio warning signal from an external warning signaltransmitter means, said circuit board comprising an output circuitcontrolled by said signal receiver to output a control signal, and afixed electric plug connected to said output circuit for connection tothe jack at said cellular phone for transmitting said control signalfrom said circuit board to said switching circuit to further switch onthe said particular key button set, causing the said particular keybutton set to dial a set telephone number.
 2. The mobile security systemof claim 1 wherein the said particular key button set can be formed byone or more than one key button.
 3. The mobile security system of claim1 wherein further comprising a power supply device for providing saidcellular phone and said auto dialing unit with the necessary workingelectricity.
 4. The mobile security system of claim 1 wherein said autodialing unit further comprises a battery power supply for providing thenecessary working electricity to said circuit board and said signalreceiver.
 5. The mobile security system of claim 1 wherein the saidcircuit board further including a voice player unit thereof such thatthe said voice player unit and the voice-controlled function of thecellular phone can be switched on simultaneously after the said signalreceiver installed in the said circuit board receives a radio warningsignal from an external warning signal transmitter means, then, the saidcellular phone will dial a preset telephone number by a special voiceproducing from the said voice player unit.
 6. A mobile security systemcomprising a cellular phone and an auto dialing unit built in saidcellular phone, said cellular phone comprising a particular key buttonset driven to dial a set telephone number, and a switching circuitcontrolled to drive said particular key button set to dial a settelephone number, said auto dialing unit comprising a circuit boardhaving output circuit connected to said key button set through saidswitching circuit, and a signal receiver installed in said circuit boardfor receiving a radio warning signal from an external warning signaltransmitter means for driving said switching circuit to switch on saidparticular key button set, causing said particular key button set todial a set telephone number.
 7. The mobile security system of claim 6wherein the said particular key button set can be formed by one or morethan one key button.
 8. The mobile security system of claim 6 whereinfurther comprising a power supply device for providing said cellularphone and said auto dialing unit with the necessary working electricity.9. The mobile security system of claim 6 wherein said auto dialing unitfurther comprising a battery power supply for providing the necessaryworking electricity to said circuit board and said signal receiver. 10.The mobile security system of claim 6 wherein the said circuit boardfurther including a voice player unit thereof such that the said voiceplayer unit and the voice-controlled function of the cellular phone canbe switched on simultaneously after the said signal receiver installedin the said circuit board receives a radio warning signal from anexternal warning signal transmitter means, then, the said cellular phonewill dial a preset telephone number by a special voice producing fromthe said voice player unit.
 11. An auto dialing unit used in a mobilesecurity system, comprising a rack, an adjustable cellular phone carrierboard, an actuating bar, a control device, a movable pressure device fordriving said actuating bar up and down, a driving device, and a powersupply unit, wherein: said rack comprising two opposing vertical boardsarranged in parallel, and a horizontal board connected between saidvertical boards, said vertical boards each comprising a longitudinallyextended step structure, a substantially rectangular top recess on themiddle, and a buffer device mounted in said top recess; said adjustablecellular phone carrier board is supported on said horizontal boardinside said rack by vertically adjustable positioning means to carry acellular phone, having a sliding locating plate inserted into alongitudinal sliding groove thereof and fixed thereto at the desiredlocation by a tightening up screw to hold a cellular phone in place;said actuating bar is a U-shaped bar pivoted to said vertical boards ofsaid rack and turned between a first position where said actuating baris disposed outside the top recess at each of said vertical boards, anda second position where said actuating bar is disposed in the top recessat each of said vertical boards and supported on the buffer device inthe top recess at each of said vertical boards, comprising two parallelside arms each have a first end respectively pivoted to said verticalboards of said rack and a second end, a transverse arm connected betweenthe second end of said side arms, and a sliding button mounted on saidtransverse arm and moved between said side arms; said control devicecomprising a control circuit board mounted on the horizontal board ofsaid rack at a bottom side, and a signal receiver installed in saidcontrol circuit board for receiving a radio warning signal from anexternal warning signal transmitter means; a movable pressure devicecomprising two vertical movable rods respectively inserted through arespective through hole at the top recess at each of the vertical boardsof said rack, two hook plates respectively and fixedly mounted on saidvertical movable rods at a top side for hooking up said actuating barwhen said actuating bar is turned to said second position, a horizontalpressure plate connected between said vertical movable rods suspendedbelow the horizontal board of said rack, and two compression springsrespectively mounted on said vertical movable rods and stopped betweenthe vertical boards of said rack and said hook plates; said drivingdevice comprising a motor fixedly mounted inside said rack below saidhorizontal board, said motor having an output shaft, and a cam fixedlymounted on the output shaft of said motor and peripherally disposed incontact with the horizontal pressure board of said movable pressuredevice; said power supply unit is a battery box mounted in said rack andconnected to said control device and said driving device by circuit toprovide the necessary working voltage; when a cellular phone is placedon said cellular phone carrier board and secured in place by saidsliding locating plate, said actuating bar is turned to said secondposition and retained in place by said hook plates, enabling saidsliding button to be aimed at a key button for making calls at thecellular phone installed in said cellular phone carrier board, and saidcontrol device drives said motor to rotate said cam through two runswhen said signal receiver receives a warning signal from an externalwarning signal transmitter means, causing said actuating bar to bepulled down, so that the key button for making calls of the cellularphone is triggered twice by said sliding button to call a predeterminedtelephone number.
 12. The auto dialing unit of claim 11 wherein saidadjustable cellular phone carrier board has one end mounted with a U-barhaving a bottom screw rod inserted through a hole at the horizontalboard of said rack and screwed up with an adjustment nut for adjustingthe elevation of said adjustable cellular phone carrier board relativeto the horizontal board of said rack, and an opposite end coupled to alink having a distal end pivoted to a screw rod and screwed up with anadjustment nut for adjusting the elevation said adjustable cellularphone carrier board relative to the horizontal board of said rack. 13.The auto dialing unit of claim 11 wherein said side arms of saidactuating bar each have one end respectively pivoted to the verticalboards of said rack, an opposite end provided with a longitudinallyextended sliding slot, and an elongated side hole disposed at an outerside in communication with said longitudinally extended sliding slot,and the transverse arm of said actuating bar comprises two coupling pinsperpendicularly raised from distal ends thereof in same direction andrespectively inserted into the longitudinally extended sliding slots atsaid side arms and supported on a respective compression spring in thelongitudinal extended sliding slots at said side arms, said couplingpins each having a stop pin perpendicularly disposed at one side andrespectively extended out of the elongated side holes at said side arms.14. The auto dialing unit of claim 11 further comprising aspring-supported holding down device installed in said rack for holdingdown a cellular phone on said adjustable cellular phone carrier board,said spring-supported holding down device comprising a lever having aninner end pivoted to the horizontal board of said rack and an outer endextended out said rack for turning by hand, a substantially U-shapedplate pivoted to said lever by a pivot and disposed between said leverand the horizontal board of said rack, and two tensile springssymmetrically connected between said lever and the horizontal board ofsaid rack adjacent to said pivot, said U-shaped plate having twoupwardly extended, angled clamping ends inserted through a respectivesliding opening at said adjustable cellular phone carrier board forclamping a cellular phone on said adjustable cellular phone carrierboard.
 15. The auto dialing unit of claim 11 wherein the side boards ofsaid rack each have vertical mounting grooves arranged in parallel at aninner side for the positioning of a cellular phone holder for holding acellular phone.
 16. The auto dialing unit of claim 11 wherein the saidmotor also can rotate said cam through one run when said signal receiverreceives a warning signal from an external warning signal transmittermeans, causing said actuating bar to be pulled down, so that the keybutton for making calls of the cellular phone is triggered once by saidsliding button to call a predetermined telephone number.